422 American Seashells 



Tellina laevigata Linne Smooth Tellin 



Plate 40k 



Southern Florida and the West Indies. 



2 to 3 inches in length, oval to slightly elongate, moderately compressed, 

 strong, with a smooth, glossy surface except for microscopic, radial scratches. 

 Exterior color either whitish or usually faintly rayed, or banded at the ven- 

 tral margins with soft, creamy-orange. Inside polished white to yellowish. 

 Rare in Florida, fairly common in the West Indies. 



Subgenus Tellinella Morch 1853 

 Tellina interrupta Wood Speckled Tellin 



Plate 40I 



North Carolina to south half of Florida and the West Indies. 



2/4 to 3% inches in length, well elongated, moderately inflated, twisted 

 at the posterior end where at the dorsal margin on the right valve there are 

 2 rough ridges. Concentric threads numerous, evenly spaced. Color whitish 

 with numerous small, prominent, zigzag specklings of purplish brown. Inte- 

 rior yellowish. Not uncommon in southeast Florida, but abundant in some 

 shallow West Indian bays. 



Tellina idae Dall Ida's Tellin 



Figures 87a, b; 28h 



Santa Monica to Newport Bay, California. 



2 to 2 34 inches in length, elongate, compressed. With strong, rather 

 evenly spaced, concentric, lamellate threads. Posterior end narrow, slightly 

 twisted and with a rounded, radial ridge near the dorsal margin (in right 

 valve) or a ridge at the dorsal margin and a furrow below it (left valve). 

 Ligament elongate and sunk deeply into the long, deep dorsal-margin furrow. 

 Color grayish white. Moderately common. 



Subgenus Angulus Miihlfeld 181 1 



Tellina agilis Stimpson Northern Dwarf Tellin 



Plate 30X; figure 86f 

 Gulf of St. Lawrence to North Carolina. 



Vs to Yz inch in length, moderately elongate, compressed, fairly fragile; 

 glossy-white externally with an opalescent sheen. Interior white. Ligament 

 external and prominent. With a large rounded pallial sinus almost extending 

 to the anterior muscle scar. External sculpture of faint, microscopic, con- 

 centric, impressed lines. Commonly found washed on shore from Maryland 

 north. Formerly known as Tellina tenera Say and Angiiliis tener Say (not 



